Smoke rises from railway cars that were carrying crude oil after derailing in downtown Lac-Megantic, Quebec, on Saturdayy, July 6, 2013. A large swath of Lac Megantic was destroyed Saturda

Smoke rises from railway cars that were carrying crude oil after derailing in downtown Lac-Megantic, Quebec, on Saturdayy, July 6, 2013. A large swath of Lac Megantic was destroyed Saturday after a train carrying crude oil derailed, sparking several explosions and forcing the evacuation of up to 1,000 people.